casino 2 - prog150 @ hackaflag 2017 - porto alegre

casino2.py

#!/usr/bin/python
## casino 2 - prog150 @ hackaflag 2017 - porto alegre
# @author intrd - http://dann.com.br/ + pwn4food team

# int_netcat.py: https://gist.github.com/intrd/00a39c83f752acf81775bfa9721e745a

import re, sys, string, math, time, os, random
sys.path.append("../../LIBS")
from int_netcat import Netcat

def get_maior(n, x=False):
    first = int(n[0])
    last = int(n[-1])
    data = {}
    if last>first:
        data["point"] = last
        data["discard"] = first
    else:
        data["point"] = first
        data["discard"] = last
    if x:
        n=n[1:]
        n=n[:-1]
        return n
    return data

# n = [5,3,2,9,4,1]
# n = map(int, n)

# print n
# n = sorted(n)
# print n
# n = n[len(n)/2:]
# print n
# exit()

# for i in range(0,len(n)/2):
#     answer = get_maior(n)
#     print answer
#     n = get_maior(n,True)

# exit()

while 1:

    nc = Netcat('138.197.10.170', 41114)
    #nc = Netcat('138.197.10.170', 14441)
    data=nc.read_until("start:")
    nc.write("start")
    m=0
    while 1:
        data=nc.read_until("resposta")
        print(data)

        n1=re.search(r"\): \[(.*)\]", data).group(1).split("=")[0]
        n1 = n1.replace(" ", "")
        n = n1.split(",")
        
        if "HACK" in data:
            exit()

        #n = [5,3,2,9,4,1]
        ss=0
        for i in range(0,len(n)/2):
            answer = get_maior(n)
            print answer
            n = get_maior(n,True)
            ss+=answer["point"]

        # n = map(int, n)

        # print n
        # n = sorted(n)
        # print n
        # n = n[len(n)/2:]
        # print n

        # ss=sum(n)
        # print ss

        nc.write(str(ss)+"\n")
        #print nc.read()


        #exit()